With smooth response and high efficiency, the Fostex 025H27 bullet tweeter will provide excellent performance in everything from high output monitors to bass guitar cabinets. The 1" phenolic diaphragm delivers natural response, and the high quality horn controls dispersion to minimize unwanted reflection. This new old stock tweeter was used in many popular existing systems, so now is your chance to get some of your favorite speakers and bass guitar cabinets back into like new condition.